What are my email sending limits?

Email Account Limits

The following limits apply to all messages sent via authenticated SMTP. This will primarily be used for email sent via a mail client but can also include mail sent via your website if configured to send via SMTP.

We impose a limit of 8,000 messages per e-mail address per 24 hours.

The following limits also apply:

• No more than 10,000 recipients per day.
• No more than 2,000 unique recipients per day.
• A single email may not be sent to more than 100 individual addresses.

For example, if you were to send 100 emails to 5 different e-mail addresses within a 2424-hour period. We would count 100 messages, 500 total recipients, and 5 unique recipients.

Web Server Limits

A limit of 500 messages per day is imposed on all e-mails sent by our web servers. E-mails sent by the web servers should be no larger than 5 MB in size. This applies to all messages sent via the PHP mail() function.

Autoresponders

An autoresponder only sends once every 8 hours per sender

Zero Tolerance Spam Policy

We take a zero-tolerance stance against the sending of unsolicited email, bulk emailing and spam. 

Just so you know, the distributed nature of our network means email can leave through different servers at different times. As a result, you may see periods when you can send more messages than the limits mentioned above. However, this behavior should not be relied upon and needs to be supported. If you do wish to send a more significant number of e-mails than any of the limits mentioned above, we recommend looking at specialist marketing email platforms such as SendGrid, Mailgun, or Mailjet.

New Mailbox Limit

When a new mailbox has been set up, the sending is limited to 50 per day for seven days. This is an abuse rule to prevent new mailboxes from being set up and used immediately to send out high volumes of spam emails. To preserve the platform's reputation and protect mail being sent from being spoofed as spam by third parties, this rule was put in place to protect that status.